HALF SCREEN OK BUT THE OTHER HALF HAS WHITE GREEN LINES VERTICAL FLASHING AND APPR/DISAPP... WHATS THE SOLUTION....FIXABLE?

FIRST ONLY THE TOP SCREEN HAS BLACK SQUARISH BOX,WITH BLUE AND RED 2 THIN VERTICAL LINES RUNING FROM TOP TO ALMOSST BOTTOM...NOW THEY ARE GONE,,,LEFT HALF SCREEN IS FINE WITH PIC AND SOUND BUT THE OTHER HALF GOES WHITE WITH FLASHIN AND STRETCHIN GREEN LINES AND BOXES.....

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If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to both Plasma & LCD screen are given with illustrations. You can get an idea about the fault to an extent.

HelloCheck the smoothing capacitor to video output supply voltage, usually derived from any one winding of the LOT. It will come around 10uF350VDC to 47uF 350VDC range. If this capacitor is faulty, or gone less in capacitance with time, this type of fault will occur. Check the green volour output transistor on the video output card, can be located attached to the neck of the picture tube; for any loose soldering or leakage. OK.

there maybe some problem with the vertical circuits with your tv, if you are still satisfy and tv is viewable then patiencely watch it. however as times goes by using it, if the defect is not corrected it may worsening the vertical circuits problem. scanning vertical trace is the problem of your tv.

It's a connection inside the TV that's faulty. It could be as simple as reseating the ribbon cables that connect the control board to the glass display. Or it could be that the fault is on the board and needs to be replaced. The fact that the problem comes and goes should tell you it's fixable.

try to go to the factory reset and see if that helps. If not, you can then check your connection. if you use component (red, green and blue for video and red and white for audio), make sure all the color matches when you plug it in. if everything have been checked then you need to replace the main board and it should correct the problem.